Species richness and biomass of understory vegetation in a Eucalyptus globulus Labill. coppice as affected by slash management

Carneiro, M.; Fabião, António; Martins, Martinho; Cerveira, C.; Santos, Carlos Henrique dos; Nogueira, Carla; Lousã, Mário; Hilário, Luís; Fabião, André; Abrantes, Manuel; Madeira, Manuel

doi:10.1007/s10342-006-0143-5

Cited by 22 publications

(18 citation statements)

References 19 publications

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“…The number of shrub species was very close to the previous research result (13-23 species) [37]. Carneiro et al [38] found that the average number of understory species was 6-15 in Eucalyptus plantations aged 1 and 10 years old. Luo et al [39] also found the diversity of shrub species was similar among subtropical plantations in southern China.…”

Section: Effects Of Plantation Typesupporting

confidence: 73%

Dynamics of Understory Shrub Biomass in Six Young Plantations of Southern Subtropical China

Chen

Zhang

et al. 2017

Forests

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Abstract:Understory shrubs are an important component of forest ecosystems and drive ecosystem processes, such as ecosystem carbon cycling. However, shrub biomass carbon stocks have rarely been reported, which limits our understanding of ecosystem C stock and cycling. In this study, we evaluated carbon accumulation of shrub species using allometric equations based on height and basal diameter in six subtropical plantations at the age of 1, 3, 4 and 6 years. The results showed that plantation type did not significantly affect the total biomass of shrubs, but it significantly affected the biomass of Rhodomyrtus tomentosa, Ilex asprella, Clerodendrum fortunatum and Baeckea frutescens. The biomass of dominant shrub species R. tomentosa, I. asprella, Gardenia jasminoides and Melastoma candidum increased with stand age, while the biomass of C. fortunatum and B. frutescens decreased. The inconsistent biomass-time patterns of different shrub species may be the primary reason for the altered total shrub biomass in each plantation. Consequently, we proposed that R. tomentosa, I. asprella, G. jasminoides and M. candidum could be preferable for understory carbon accumulation and should be maintained or planted because of their important functions in carbon accumulation and high economic values in the young plantations of southern subtropical China.

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Section: Effects Of Plantation Typesupporting

confidence: 73%

Dynamics of Understory Shrub Biomass in Six Young Plantations of Southern Subtropical China

Chen

Zhang

et al. 2017

Forests

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“…However, such a trend was not statistically significant when analysed by linear regression. Variation in the number of species over time in previous studies performed in eucalyptus plantations in Central Portugal has been partially explained by the scarcity or abundance of winter and spring rainfall (Fabião et al, 2002;Carneiro et al, 2007). 11.5 a 9.5 ab 7.0 b 6.5 b…”

Section: Number Of Speciesmentioning

confidence: 97%

“…In Portugal, some studies have described the dynamics of understory vegetation over the 1st year following establishment of a eucalyptus plantation (Fabião et al, 2002;Carneiro et al, 2007). However, these studies focused on the effect of soil preparation techniques and harvest residue management related to the intensity of site preparation on understory vegetation.…”

Section: Introductionmentioning

confidence: 97%

Effects of harrowing and fertilisation on understory vegetation and timber production of a Eucalyptus globulus Labill. plantation in Central Portugal

Carneiro¹,

Fabião²,

Martins³

et al. 2008

Forest Ecology and Management

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Harrowing and fertilisation are common practices at middle rotation in Eucalyptus globulus Labill. plantations in Central Portugal. In order to clarify the effects of such practices on understory vegetation and timber production, a field trial was installed in a 5-year-old first rotation eucalyptus plantation, in a region with mixed oceanic and Mediterranean climatic influences. Four treatments that involved harrowing (H), fertilisation (F), harrowing and fertilisation (HF), and control (C) were tested in the study. The treatments were replicated four times and arranged in a simple completely randomised design. Vegetation surveys were performed by the quadrat method in the 3 years following treatments and by the line interception method in the 7th and 8th years. Samples of understory biomass were collected, oven dried and weighed. In treatments with harrowing, the understory vegetation consistently had lower number of species, less plant cover, species diversity, and biomass than the other treatments. The mean total number of species only once reached 10 in H or HF plots, and was always greater than 12 in C and F plots in the first 3 years, but decreased in the 7th and 8th years. In the first 3 years, the understory biomass averaged 30-60 g m À2 in the F and C plots, and never exceeded 13 g m À2 in treatments with harrowing, which corresponded with the proportion of soil coverage by understory vegetation (4-12% in H and HF, and 38-62% in F and C plots). In the 7th and 8th years, differences in the understory biomass were less important, but the control plots consistently had the largest understory biomass. The influence of treatments in timber production was not statistically significant at the end of rotation. #

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“…Furthermore, the assumption did not have a negative effect on biodiversity as the removal of harvesting residues has been proven not to reduce understory species diversity (Carneiro et al 2007). …”

Section: Discussionmentioning

confidence: 99%

Analysis of the Impact of the Use of Eucalyptus Biomass for Energy on Wood Availability for Eucalyptus Forest in Portugal: a Simulation Study

Barreiro¹,

Tomé²

2012

E&S

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ABSTRACT. In the scope of energy diversification and profitable forest resource exploitation, increasing the use of biomass residues for energy can play an important role by using local sources of energy, reducing carbon emissions and fossil-energy use, providing additional revenue for the forest sector, and also reducing the risk of forest wildfires. Regional simulators can help forecast available wood and biomass and allow evaluation of possible future conflicts of interest and their consequences for society. This paper focuses on improving an existing regional forest simulator (SIMPLOT) so that it can be applied to study research questions related to increasing the use of eucalyptus biomass for bioenergy and the related consequences for wood available for pulp. Biomass modules were integrated into SIMPLOT so that different sources of biomass used for energy could be accounted for. The updated version of the simulator was used to assess the impact of different biomass demands for bioenergy, combined with different afforestation alternatives on the wood available for the pulp and paper industry in Portugal. SIMPLOT's forecasts indicated that the eucalyptus forest is unable to satisfy wood demand even when pulp afforestation areas are doubled, regardless of the biomass demand considered. Also, the simulation results showed that, with the tested afforestation rates, eucalyptus forest cannot meet high increases in demand for wood.

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Species richness and biomass of understory vegetation in a Eucalyptus globulus Labill. coppice as affected by slash management

Cited by 22 publications

References 19 publications

Dynamics of Understory Shrub Biomass in Six Young Plantations of Southern Subtropical China

Dynamics of Understory Shrub Biomass in Six Young Plantations of Southern Subtropical China

Effects of harrowing and fertilisation on understory vegetation and timber production of a Eucalyptus globulus Labill. plantation in Central Portugal

Analysis of the Impact of the Use of Eucalyptus Biomass for Energy on Wood Availability for Eucalyptus Forest in Portugal: a Simulation Study

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